By the way, despite what some posters here assumed(looking at you Saevel) I haven't actually given an opinion on the "fairness" of the referendum.
While I do think the margin of victory for the validity of something of this important should be placed higher; I also think at this point it would undemocratic to ignore the result.
I'm not sure what margin there should be though. For example if it was 60%, that wouldn't be fair either. It does seem both sides weren't educated enough on the stances they took. This entire situation reeks of complacency and soreness. No one should ever be complacent as a voter.
For all the whining that Australians make about compulsory voting, and having lived in more than one country, I have to say that its just better to make it compulsory. Lazy people are more likely to get themselves educated about whats going on when they know they have to make the choice.